- Protects slides from pollution, dust, fingerprints, and scratches
- Air exchange system enables the slide to "breathe" which helps to eliminate bacteria and Newton rings
- Anti-Newton glass prevents Newton rings
- Mount design prevents dust penetration
- Slide is safely held in place by clips on the metal-mask
- During projection, the slide stays absolutely flat to ensure a focused projection of the whole image
- Metal-mask design ensures sharp edges
